Revision as of 14:44, 14 October 2020

Abstract

The Delhi Metro (DM) is a mass rapid transit system serving the National Capital Region of India. It is also the world’s first rail project to earn carbon credits under the Clean Development Mechanism of the United Nations for reductions in CO2 emissions. Did the DM also lead to localized reduction in three transportation source pollutants? Looking at the period 2004–2006, one of the larger rail extensions of the DM led to a 34 percent reduction in localized CO at a major traffic intersection in the city. Results for NO2 are also suggestive of a decline, while those for PM25 are inconclusive due to missing data. These impacts of pollutant reductions are for the short run. A complete accounting of all long run costs and benefits should be done before building capital intensive metro rail projects.

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The different versions of the original document can be found in:

• http://crossasia-repository.ub.uni-heidelberg.de/3888 under the license http://creativecommons.org/licenses/by-sa/3.0/de/

• http://dx.doi.org/10.1596/1813-9450-7448

• http://hdl.handle.net/10986/22878 under the license http://creativecommons.org/licenses/by/3.0/igo/

• http://hdl.handle.net/10986/30137 under the license http://creativecommons.org/licenses/by-nc-nd/3.0/igo

• https://openknowledge.worldbank.org/bitstream/10986/30137/1/wber_31_1_271.pdf under the license cc-by-nc-nd

• https://openknowledge.worldbank.org/bitstream/10986/30137/1/wber_31_1_271.pdf under the license cc-by-nc-nd

DOIS: 10.1093/wber/lhv056 10.11588/xarep.00003888 10.1596/1813-9450-7448